IMC Chicago Portfolio holdings
IMC-Chicago, a key arm of IMC Trading founded in 1989 by Rob Defares and René Schelvis in Amsterdam, is a proprietary trading firm and market maker headquartered in Chicago since opening its first overseas office there in 2000. Employing over 650 of IMC’s 1,600+ global workforce, it operates at the heart of North America’s financial hub, trading equities, options, futures, and other derivatives on major exchanges like the Chicago Mercantile Exchange (CME) and Chicago Board Options Exchange (CBOE). Known for its technology-driven approach, IMC-Chicago leverages advanced algorithms and low-latency systems to provide liquidity across more than 100 global venues, evolving from a trading outfit with strong tech to a tech company that trades. Under CEO Rob Defares, the firm emphasizes innovation, quantitative strategies, and a collaborative culture, making it a powerhouse in the U.S. derivatives market.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Invesco QQQ Trust
QQQ
|
+$203M |
| 2 |
JD.com
JD
|
+$105M |
| 3 |
Boeing
BA
|
+$105M |
| 4 |
Applovin
APP
|
+$93.6M |
| 5 |
Netflix
NFLX
|
+$81.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$167M |
| 2 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$146M |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$135M |
| 4 |
Pinduoduo
PDD
|
+$128M |
| 5 |
Palantir
PLTR
|
+$108M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.39% |
| 2 | Technology | 0.33% |
| 3 | Communication Services | 0.22% |
| 4 | Industrials | 0.16% |
| 5 | Financials | 0.14% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2476
CALL
Lightbridge
LTBR
$327M
| $1.42M | ﹤0.01% |
66,800
+43,600
| +188% | +$656K |
|
2477
CALL
Shoals Technologies Group
SHLS
$1.37B
| $1.42M | ﹤0.01% |
191,200
+120,400
| +170% | +$741K |
|
2478
Mercury Insurance
MCY
$5.81B
| $1.41M | ﹤0.01% |
16,665
+3,230
| +24% | +$238K |
|
2479
PUT
Concentrix
CNXC
$1.52B
| $1.41M | ﹤0.01% |
+30,600
| New | +$1.63M |
|
2480
CALL
Innoviz Technologies
INVZ
$114M
| $1.41M | ﹤0.01% |
691,500
+87,200
| +14% | +$149K |
|
2481
PUT
Herbalife
HLF
$1.28B
| $1.41M | ﹤0.01% |
166,900
+300
| +0.2% | +$2.83K |
|
2482
CALL
SLM Corp
SLM
$5.22B
| $1.41M | ﹤0.01% |
50,800
+4,600
| +10% | +$144K |
|
2483
PUT
Repligen
RGEN
$9.45B
| $1.4M | ﹤0.01% |
+10,500
| New | +$1.28M |
|
|
KEEL
2484
PUT
Keel Infrastructure Corp
KEEL
$2.04B
| $1.4M | ﹤0.01% |
+497,700
| New | +$772K |
|
2485
PUT
Ares Capital
ARCC
$14.5B
| $1.4M | ﹤0.01% |
68,600
-17,100
| -20% | -$380K |
|
2486
Energy Transfer Partners
ET
$71.5B
| $1.4M | ﹤0.01% |
81,409
+45,186
| +125% | +$792K |
|
2487
Invesco CurrencyShares Japanese Yen Trust
FXY
$426M
| $1.4M | ﹤0.01% |
22,444
+11,169
| +99% | +$697K |
|
2488
CALL
Nabors Industries
NBR
$1.35B
| $1.39M | ﹤0.01% |
34,100
-11,800
| -26% | -$420K |
|
2489
PUT
nVent Electric
NVT
$27.5B
| $1.39M | ﹤0.01% |
+14,100
| New | +$1.22M |
|
2490
CALL
Rush Street Interactive
RSI
$2.85B
| $1.39M | ﹤0.01% |
67,900
+28,200
| +71% | +$532K |
|
2491
CALL
CenterPoint Energy
CNP
$26.7B
| $1.39M | ﹤0.01% |
35,800
-16,300
| -31% | -$616K |
|
2492
CALL
Digital Turbine
APPS
$1.53B
| $1.39M | ﹤0.01% |
216,900
-94,700
| -30% | -$470K |
|
|
WAY
2493
CALL
Waystar Holding Corp
WAY
$4.81B
| $1.39M | ﹤0.01% |
+36,600
| New | +$1.36M |
|
2494
CALL
Triumph Financial Inc
TFIN
$1.87B
| $1.39M | ﹤0.01% |
+27,700
| New | +$1.63M |
|
|
THS
2495
PUT
DELISTED
Treehouse Foods
THS
| $1.38M | ﹤0.01% |
68,400
+54,700
| +399% | +$1.04M |
|
2496
CALL
Winnebago Industries
WGO
$921M
| $1.38M | ﹤0.01% |
41,300
-700
| -2% | -$23.1K |
|
2497
CALL
Vipshop
VIPS
$6.8B
| $1.38M | ﹤0.01% |
70,300
-33,800
| -32% | -$561K |
|
2498
PUT
ArcelorMittal
MT
$55.2B
| $1.37M | ﹤0.01% |
38,000
+7,100
| +23% | +$239K |
|
2499
Direxion Daily MSFT Bear 1X ETF
MSFD
$17.1M
| $1.37M | ﹤0.01% |
+127,258
| New | +$1.4M |
|
2500
CALL
KBR
KBR
$4.81B
| $1.37M | ﹤0.01% |
+29,000
| New | +$1.41M |
|
Similar funds
IMC Chicago's Q3 2025 Portfolio in Review
As of Q3 2025, IMC Chicago held 4,045 positions worth $275B, up 22% from $225B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
IMC Chicago deployed $23.7B of net new capital in Q3 2025, opening 783 new positions and adding to 1,843 existing holdings. Its largest new stake was Netflix: 666,120 shares worth $79.9M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.39% of assets, up from 0.25% a quarter earlier, followed by Technology and Communication Services.
On the sell side, the largest reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, an estimated $135M trimmed.
- IMC Chicago's largest Q3 2025 buy was Netflix: 666,120 shares worth $79.9M.
- IMC Chicago added most to Invesco QQQ Trust in Q3 2025, an estimated $203M increase.
- IMC Chicago's biggest Q3 2025 reduction was State Street SPDR Dow Jones Industrial Average ETF Trust, cutting an estimated $135M.
- IMC Chicago fully exited Apple in Q3 2025, selling an estimated $167M.
- IMC Chicago's ten largest holdings make up 38% of its $275B portfolio in Q3 2025.
- IMC Chicago opened 783 new positions and closed 492 in Q3 2025.
- IMC Chicago's portfolio value rose 22% quarter-over-quarter to $275B.
Based on IMC Chicago's 13F filing for Q3 2025, filed 4 Nov 2025.